A/C blowing heater hot air

Tiny
BGWALT37
  • 1995 GMC C1500
  • 154,000 MILES

I have a 95 GMC Sierra Z-71 I turn the a/c on and it's like I have the heat on. The system is full of freon and it's even hot when it's off any ideas?

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Wednesday, July 25th, 2012 AT 5:52 PM

12 Replies

Tiny
SATURNTECH9
  • EXPERT
  • 30,805 POSTS

Does the temp slider feel like its moving the temp blend door?Does the temp change when moving the temp adjustment from cold to hot and hot to cold?

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Wednesday, July 25th, 2012 AT 5:58 PM
Tiny
BGWALT37
  • MEMBER

I can hear the damper open and close when I turn it from cold to hot

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Wednesday, July 25th, 2012 AT 6:08 PM
Tiny
BGWALT37
  • MEMBER

And no the temp doesn't change

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Wednesday, July 25th, 2012 AT 6:09 PM
Tiny
SATURNTECH9
  • EXPERT
  • 30,805 POSTS

So does it actually feel like the heat is on all the time being that hot?Or is it just warm air?

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Wednesday, July 25th, 2012 AT 6:13 PM
Tiny
BGWALT37
  • MEMBER

Feels like the heat is on all the time

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Wednesday, July 25th, 2012 AT 6:20 PM
Tiny
ASEMASTER6371
  • EXPERT
  • 25,515 POSTS

What are the exact pressures running?

Roy

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Wednesday, July 25th, 2012 AT 10:39 PM
Tiny
BGWALT37
  • MEMBER

Not sure I don't have gauges

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Wednesday, July 25th, 2012 AT 10:49 PM
Tiny
ASEMASTER6371
  • EXPERT
  • 25,515 POSTS

We need these readings to further assist you.

Roy

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Wednesday, July 25th, 2012 AT 10:51 PM
Tiny
BGWALT37
  • MEMBER

Ok I will see if I can rent some

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Wednesday, July 25th, 2012 AT 11:04 PM
Tiny
ASEMASTER6371
  • EXPERT
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Get back to us with the pressures

Roy

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Thursday, July 26th, 2012 AT 1:45 AM
Tiny
BGWALT37
  • MEMBER

It was the blend valve actuator it wasn't closing all the way but thanks for the help

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Thursday, July 26th, 2012 AT 1:50 AM
Tiny
SATURNTECH9
  • EXPERT
  • 30,805 POSTS

Thats what I thought it was since the temp never changed from the heater to cooler air. Glad to hear you got it figured I didnt get my email alerts you responded back till just this morning.

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Thursday, July 26th, 2012 AT 5:02 PM

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